mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Eric Sandeen
f835afd3f0
We should be able to open device nodes for writing even if they live on a readonly filesytem. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Rich Johnston <rjohnston@sgi.com> Signed-off-by: Rich Johnston <rjohnston@sgi.com>
82 lines
2.2 KiB
Bash
82 lines
2.2 KiB
Bash
#! /bin/bash
|
|
# FS QA Test No. 306
|
|
#
|
|
# Test RW open of a device on a RO fs
|
|
#
|
|
#-----------------------------------------------------------------------
|
|
# Copyright (c) 2013 Red Hat, Inc. All Rights Reserved.
|
|
#
|
|
# This program is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU General Public License as
|
|
# published by the Free Software Foundation.
|
|
#
|
|
# This program is distributed in the hope that it would be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write the Free Software Foundation,
|
|
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
#-----------------------------------------------------------------------
|
|
#
|
|
# creator
|
|
owner=sandeen@redhat.com
|
|
|
|
seq=`basename $0`
|
|
echo "QA output created by $seq"
|
|
|
|
here=`pwd`
|
|
tmp=/tmp/$$
|
|
status=1 # failure is the default!
|
|
trap "_cleanup; exit \$status" 0 1 2 3 15
|
|
|
|
_cleanup()
|
|
{
|
|
cd /
|
|
rm -f $tmp.*
|
|
}
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common.rc
|
|
. ./common.filter
|
|
|
|
# real QA test starts here
|
|
|
|
# Modify as appropriate.
|
|
_supported_fs generic
|
|
_supported_os Linux
|
|
_require_scratch
|
|
|
|
DEVNULL=$SCRATCH_MNT/devnull
|
|
DEVZERO=$SCRATCH_MNT/devzero
|
|
|
|
rm -f $seq.full
|
|
_scratch_mkfs > $seq.full 2>&1
|
|
_scratch_mount
|
|
|
|
rm -f $DEVNULL $DEVZERO
|
|
|
|
mknod $DEVNULL c 1 3 || _fail "Could not create devnull device"
|
|
mknod $DEVZERO c 1 5 || _fail "Could not create devzero device"
|
|
|
|
_scratch_unmount || _fail "Could not unmount scratch device"
|
|
_scratch_mount -o ro || _fail "Could notemount scratch readonly"
|
|
|
|
# We should be able to read & write to/from these devices even on an RO fs
|
|
echo "== try to create new file"
|
|
touch $SCRATCH_MNT/this_should_fail 2>&1 | _filter_scratch
|
|
echo "== pwrite to null device"
|
|
$XFS_IO_PROG -c "pwrite 0 512" /dev/null | _filter_xfs_io
|
|
echo "== pread from zero device"
|
|
$XFS_IO_PROG -c "pread 0 512" /dev/zero | _filter_xfs_io
|
|
|
|
echo "== truncating write to null device"
|
|
echo foo > $DEVNULL 2>&1 | _filter_scratch
|
|
echo "== appending write to null device"
|
|
echo foo >> $DEVNULL 2>&1 | _filter_scratch
|
|
|
|
# success, all done
|
|
status=0
|
|
exit
|